Patent GB-394215-A (GB)
Title: Improvements in type actions for typewriting and like machines
IPC: B41J23/06
Filed: 1932-10-27
Abstract: 394,215. Typewriters &c. REMING- TON TYPEWRITER CO., Ilion, New York, U.S.A.-(Assignees of Hart, F. A. ; Sagamore Road, Shippan, Stamford, Connecticut, U.S.A.) Oct. 27, 1932, No. 30110. Convention date, Dec. 26,1931. [Class 100 (iv).] Relay type-lever actions.-A typewriter or like machine is provided with a power-operated type-carrier having date-printing types detachably mounted thereon. As applied to the computing-typewriter described in Specification 374,109, date-printing types 112, 113, 114 are mounted on a type-lever 97 engaging a slotted lug 123 on a bell-crank 90 having a slot 89 engaging a pin 88 on a bell-crank 86 co-operating with a bell-crank 74. A roller 77 on the bell crank 74 engages a cam 40 which is mounted loosely on a driving-shaft 37 and carries a spring-urged pawl 46 adapted to co-operate with a toothed wheel 42 fast on the driving- shaft. The pawl is normally held in disengaged position by means of a shoulder 66 on a rocking arm 64 which engages a shoulder 61 on a link 55 connected to a date-printing keylever 52. The link is formed with a finger 56 and an incline 60 co-operating with a rod 57. A returning-spring 78, connected to the bell crank 74, holds the members in normal position, the pawl-spring 50 being prevented from turning the cam by co-operation of a high part 40a thereof with the roller 77. The typelever 97 does not co-operate with the aligning- guide 122, or the letter-spacing universal bar. On depression of the date-printing key, the arm 64 is moved rearwards, the pawl engages the toothed wheel, and the bell cranks are rocked to swing the type-lever 97 for impression. The incline 60 releases the link 55 from the arm, thereby permitting the arm to return and release the pawl after one revolution of the cam. To obtain clear impression of the date-types, the date-printing key may be depressed repeatedly to obtain repeat impressions, or the incline 60 may be omitted from the link 55 so that repeat-impressions can be effected by holding down the date-printing key. The bell-crank 74 and members operated thereby may be mounted in a frame section 10 which supports the machine and is hinged on a frame section 11 carrying the driving-shaft and associated parts. Types.-The types 112, 113, 114 for the month, day, and year respectively, are mounted in a holder 98 comprising a stem 101 for engaging the lever 97, and a pocket 111 for receiving the types. The types are retained by co-operation of shoulders 118, Fig. 5, thereon with a bail 117 which is pivoted on the pocket and is retained by studs 119. The types are formed with shoulders 120 for engaging the top of the pocket, and the type 114 has also a shoulder 121 for engaging the side of the pocket. The shoulders 120, in conjunction with the bail, prevent the types from being inserted upside down, and the shoulder 121 prevents the type 114 from being inserted in wrong order. Transposition of the types 112, 113 may be prevented by providing a shoulder at the side of the type 112. The stem 101 is forked to engage grooves 99 in the sides of the lever 97, and is retained by a pin 107 which is secured to a spring 103 on the lever and engages a hole 106 in the stem. On depression of the pin, a reduced part thereof registers with the hole to permit detachment of the stem. Ink-ribbon mechanism.-For operating the ribbon vibrator 141 when the date-printing key-lever 52 is depressed, the bell crank 74 is provided with an adjust. able arm 125 co-operating with the usual vibrator-actuating universal bar 128.